Keflavik Intl

$323+ Cheap flights from Reagan-National (DCA) to Keflavik Intl (KEF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — KEF
Aug 16 — Aug 231
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Cheap flight deals from Reagan-National to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 11, 2025.

Round-trip from

$511
(United)

One-way from

$323
(Mytrip)

Popular in

October

Cheapest in

December

Average price

$646
From Washington, D.C. Reagan-National to Reykjavik Keflavik Intl
One-way flight from Washington, D.C. Reagan-National to Reykjavik Keflavik Intl
Highest demand for flights based on searches. 33% potential increase in price ($416 potential increase over avg. RT price).
Cheapest flight prices on average. 13% potential price decrease ($98 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Reagan-National to Keflavik Intl

Cheapest flights from Reagan-National to Keflavik Intl
Explore the most affordable flight options available from Reagan-National to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.

This Ticket deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:05 amDCA - KEF
1 stop23h 25mVirgin Atlantic
Wed 10/111:25 amKEF - DCA
1 stop16h 16mVirgin Atlantic
Deal found 8/11$507
This United deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:00 amDCA - KEF
1 stop21h 00mMultiple Airlines
Tue 9/169:50 amKEF - DCA
2 stops28h 30mMultiple Airlines
Deal found 8/10$511
This Priceline deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:35 pmDCA - KEF
1 stop11h 35mAir Canada
Tue 9/169:50 amKEF - DCA
2 stops16h 01mAir Canada
Deal found 8/9$524
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/133:30 pmDCA - KEF
1 stop13h 00mUnited Airlines
Wed 8/209:30 amKEF - DCA
2 stops28h 58mUnited Airlines
Deal found 8/10$528
This United deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:25 amDCA - KEF
1 stop21h 05mMultiple Airlines
Wed 8/209:30 amKEF - DCA
1 stop28h 48mMultiple Airlines
Deal found 8/10$529
This FlightHub deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:45 pmDCA - KEF
1 stop9h 30mAir Canada
Tue 9/169:50 amKEF - DCA
1 stop12h 14mAir Canada
Deal found 8/10$530
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:25 amDCA - KEF
1 stop22h 05mUnited Airlines
Sun 9/149:30 amKEF - DCA
1 stop28h 50mUnited Airlines
Deal found 8/9$535
This United deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/87:00 amDCA - KEF
1 stop20h 00mMultiple Airlines
Mon 9/159:50 amKEF - DCA
1 stop27h 09mMultiple Airlines
Deal found 8/9$536
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/87:25 amDCA - KEF
1 stop21h 05mUnited Airlines
Mon 9/159:50 amKEF - DCA
1 stop27h 09mUnited Airlines
Deal found 8/10$541
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/128:00 pmDCA - KEF
1 stop32h 30mUnited Airlines
Tue 8/1911:00 amKEF - DCA
1 stop9h 21mUnited Airlines
Deal found 8/11$542
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:55 pmDCA - KEF
2 stops15h 20mUnited Airlines
Wed 9/109:30 amKEF - DCA
2 stops28h 58mUnited Airlines
Deal found 8/8$543
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/117:00 pmDCA - KEF
1 stop9h 30mUnited Airlines
Tue 8/1911:00 amKEF - DCA
1 stop9h 21mUnited Airlines
Deal found 8/9$544

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Keflavik Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Reagan-National

Fly to

Keflavik Intl

Route

Depart

Return

Price

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Tue 9/9

6:00 am-7:00 am

1 stop21h 00m

Reykjavik Keflavik Intl

Tue 9/16

9:50 am-10:20 am

2 stops28h 30m

$511

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Tue 9/9

12:55 pm-8:10 am

2 stops15h 15m

Reykjavik Keflavik Intl

Tue 9/16

9:50 am-9:51 pm

2 stops16h 01m

$524

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Mon 9/8

6:45 pm-8:15 am

1 stop9h 30m

Reykjavik Keflavik Intl

Tue 9/16

9:50 am-6:04 pm

1 stop12h 14m

$530

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Sun 9/7

6:25 am-8:30 am

1 stop22h 05m

Reykjavik Keflavik Intl

Sun 9/14

9:30 am-10:20 am

1 stop28h 50m

$535

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Mon 9/8

6:00 am-7:00 am

1 stop21h 00m

Reykjavik Keflavik Intl

Mon 9/15

9:50 am-3:51 pm

2 stops34h 01m

$536

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Mon 9/8

7:25 am-8:30 am

1 stop21h 05m

Reykjavik Keflavik Intl

Mon 9/15

9:50 am-8:59 am

1 stop27h 09m

$541

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Wed 9/3

8:00 pm-8:30 am

1 stop32h 30m

Reykjavik Keflavik Intl

Wed 9/10

9:30 am-10:20 am

1 stop28h 50m

$542

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Fri 9/5

12:55 pm-8:15 am

2 stops15h 20m

Reykjavik Keflavik Intl

Wed 9/10

9:30 am-10:28 am

2 stops28h 58m

$543

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Wed 9/3

8:00 pm-8:30 am

1 stop32h 30m

Reykjavik Keflavik Intl

Thu 9/11

9:50 am-8:59 am

1 stop27h 09m

$548

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Wed 8/27

9:40 am-8:10 am

1 stop18h 30m

Reykjavik Keflavik Intl

Wed 9/3

9:30 am-10:20 am

1 stop28h 50m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 21 results
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Best time to book a flight from Reagan-National to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated August 11, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport, such as Alaska Airlines, KLM, and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Crew

8.5

Boarding

8.1

Food

7.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What is the cheapest airline to fly from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport round-trip?

    Currently priced at $524, Air Canada will fly you from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. You may be able to fly from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport for 35% less than the average price by searching for this airline.

  • Can I find deals for flights from Reagan-National to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Keflavik Intl.

  • Can I find deals for business class flights from Reagan-National to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Reagan-National to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport (average of $328). Flying from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $655). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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Top airline flying from Reagan-National to Keflavik Intl

Discover the top airline that operate flights from Reagan-National to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$355Average$467FlexibilityNo cancel feeOn-time76%

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